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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-93327

A Deserialization of Untrusted Data vulnerability in the SubWorkflow task in Google Cloud Application Integration versions prior to 2026-09-11 on Google Cloud Platform allows an authenticated attacker to execute arbitrary code using a maliciously…

CRITICAL 9.4EPSS 0.39%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A Deserialization of Untrusted Data vulnerability in the SubWorkflow task in Google Cloud Application Integration versions prior to 2026-09-11 on Google Cloud Platform allows an authenticated attacker to execute arbitrary code using a maliciously crafted serialized object. This vulnerability was patched on 11 September 2026, and no customer action is needed.

CVSS 4.0
9.4 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.39% probability · 34th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-502
Source
f45cbf4e-4146-4068-b7e1-655ffc2c548c
EPSS trend
0%3%5%31 October 2026: 0.39%3 November 2026: 0.39%31 October 20263 November 2026

EPSS moved from 0.4% on 31 October 2026 to 0.4% on 3 November 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.